Climate almanac
Sioux City
Iowa, United States · 42.50°, -96.40°
What is the weather like in Sioux City in January?
In January, Sioux City is typically 31°F (-1°C) during the day and 16°F (-9°C) at night. The month brings about 1.3 in (32 mm) of precipitation in total. Snowfall averages about 7.1 in (181 mm) over the month.
- Average high31°F (-1°C)
- Average low16°F (-9°C)
- Precipitation1.3 in (32 mm)
- Clear or mostly clear days9
- Snowfall7.1 in (181 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)